hatiiorn



GEORGE Il. IflATI-IORN,v OF BANGOR,

MAINE, AssIeNon To TIIE nIRIeo BALL MANUFACTURING COMPANY, OF SAME PLACE.

SPECIFICATION mining 'part of Letters Patent No. coaaoauatea August 1e, 189s..

Application iiled .Tuly 24,1897.

To all whom it may concern:

Beit known that I, GEORGE H. HATHORN, a citizen of the United States,vresiding at Bangor, in the county of Penobscot and State of Maine, have invented a new and useful Forging-Machine; and I do hereby declare that the following is a full, lclear, and exact description ofthe invention, which will enable others skilled in the art to which it`appertains to make and use thesame.

My invention relates to an improved swaging-machine for swaging small articles; and it consists'of the construction hereinafter set forth, throughout the description of which reference is made to the accompanying drawings, forming part of this application, in which-fe Figure 1 shows a vertical side elevationl of my machine complete, with, section through tubing on upper tie-rod. Fig. 2 shows a ver:` tical front end view of my improved swaging-machine with the head removed. Fig. 3 is an isometric view of the upper part of my machine, j showing` construction of same. Fig. 4 represents isometric views of front and back of die-holders as constructed for forward end of swinging arm of my improved swaging-Amachine'. Fig 5 shows a similar view of the head of my device, showing concaved die-holder thereon with die attached.

Similar letters of reference refer to correspondingly like parts throughout the several Iigures.

This machine consists of a platform A, constructed similar to an enginelathe bed, having the usual central slot running longitudinally therein and supported in a hori-` zontalposition by legs B B; Upon the top of the platform which forms the stand A is bolted the frame of my invention, which is' constructed with right-angular projections rising from each end, one of which isucast similar toa pillow-block, having its journal` bearing extending transversely and facing the opposite end of the machine-that is, the cap to the box is placed upon ,the side facing the opposite end of the machine.

The upright projections at the forward end of the frame are cast in 'the form of an arc serai No. 645,821. (ramadan on a radius equal to the distance to the cen- 5o ter of they journal in lthe pillow-block E. These forward upright projections are two in number, forming. guides rF F, parallel with each other, with their facing edges dressed and separated at their upper extremities by a iilling-block h', through which a bolt passes, holding them rigid against lateral movement. The guides F F are stiffened longitudinally by braces m m, extending to the base K of the frame. They are further strengthened 6o in this direction by tie-rods T T, connecting their upper ends to the topp of the pillowblock E, and tubes jj are placed upon these rods, said tubes being of such length as to t between the` guides F and the extension b at the top of the pillow-block, against which the nuts at the extremities of the tie-rods are screwed. This arrangement produces a continuous strain upon the t tie-rods T T2, and when force is applied to these parts when op- 7o erating the machine there will not be as much give or stretch of the tie-rods as there would be if the latter lwere made with a shoulder against which the parts arescrewed. In this last instance, there being no continuous strain upon the tie-rods, when force is applied they would naturally stretch to a certain extent `before they offer complete resistance, while inthe first instance, with the rods under continuousy strain, before the force is ap- 8o plied their elasticity is destroyed. Consequently they form a perfect rebuttal to opposing force.

Between the guides F F` is adapted to reciprocate one end of an arm G, which is providedat its opposite end with a transverse shaft-h, rigidlyfastened therein, the protruding extremities of which are inclosed in the journal-box within the pillow-block E. The

forward end of the Swingin@1 arm G rotrudes o slightly beyond the guides F, and has a head F' of sufficient size in cross-section to receive a die-holder 7c, which can be attached thereto in any good and sufficient manner but in the drawings I have'shown this die-holder 7c pro- 95 vided with dowels ff, protruding from its rear face, which are adaptedtoenter holes drilled in the head of theswinging arm to receive them and prevent displacement of the die-holder in a lateral direction. The dieholder 7c is then fastened by two or more bolts screwed therein at convenient places. This arrangement allows the die-holder to be removed and replaced without variation of adjustment or readjustment of the swaging-die usually secured thereto.

The front face of the die-holder 7c is made slightly convex in shape, the convexity being planed on an arc the radius of which is equal to the distance to the pivotal point of the arm G. Extending longitudinally on the con- Vex side of the die-holder 7c is a protruding ridge a, having an overhanging edge against which a swaging-die is placed. The opposite edge of the die is secured to the convexity of the die-holder by a line of screws entering tapped holes drilled in the said die-holder. The heads of said screws bearing against the beveled edge of the die will gradually force the latter in place, as is shown in Fig. 2 of the drawings. The swaging-die c is prevented from moving in a longitudinal direction by small plates i z', placed above and below the die and fastened by screws to the die-holder.

In front of the forward end of the arm Gat a proper distance from the die-holder k is fastened, in an upright position, a rectangular-shaped block I, which in practice I term the head of my device. This head I secure to the frame of the machine by bolts l, passing through the guides F and entering three of the corners of the head I, as shown in Figs. I, 3, and 5 of the drawings. Upon the inside of the head I, I fasten by bolts or otherwise a die-holder 7d, having its face curved to coincide with the die-holder 7o upon the end of the arm G, and upon this concaved side is planed a longitudinally-extending ridge d, with a corresponding overhanging edge, against which a similarly-concaved die e' is placed, corresponding with the opposite convex die e on the convex die-holder 7c. This concaved die evis secured to the dieholder 7c' in the same manner as hereinbefore described in regard to the attachment of the die e and should so aline with this last-mentioned die as to form a complete swaging from a bar of metal placed between them when the moving die e passes the stationary dier in operating the machine. The stationary die e is adjusted to aline with the moving die e by the use of set-screws r r on this end of the platform A, upon the heads of which the lower edge of the head I rests, and for the proper distance for separating the dies to produce a perfect swaging adjustment is accomplished through the means of the coniining-bolts Z Z and the nuts thereon.

For reciprocating the forward or die end of the swinging arm G, I pivot a connecting-rod D thereto and connect the opposite end of the latter to a crank-wheel C, which is fastened to a shaft J beneath the machine.

In the drawings I have shown the shaft J supported by a hanger H, attached to the under side of the platform A; but it is not essential to adhere strictly to this construction,

' for any good and sufficient manner of supporting the power-shaft J beneath the machine will answer just as well. The wrist-pin, attaching the lower end ofV the connecting-rod I) to the crank-wheelC, should enter a radial slot o, made in said wheel, and be so constructed as to allow adjustment within said slot for the purpose of lengthening or shortening the stroke to accommodate dies of different lengths used in this machine.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

1. In a swagingmachine, an oscillating beam, guides arranged on either side of-the swinging end of said beam, a head secured to said guides a die-holder on the head and means for oscillating said beam, as and for the purpose set forth.

2. In a swaging-machine, a platform, an oscillating beam mounted thereon,guides arranged on either side of the swinging end of said beam, bolts run through said guides, a head held substantially parallel with said guides by said bolts, a die-holder adjustably arranged on the head and means for oscillating said beam, as and for the purpose set forth.

3. In a swaging-machine the combination with a horizontal platform, of a frame secured to the top of the same, said frame consisting of a pillow-block with transverse journalbearing and an extension above said bearing; curved uprights parallel with each other and connected at the base with said pillow-block; tie-rods connecting the upper ends of said guides and pillow-block; and tubes inclosing said tie-rods and separating said guides and the upper end of said pillow-block a rectangular head bolted to said guides; set-bolts adapted to adjust said head; a concaved dieholder on inner face of said head with means for securing a die thereto; a swinging arm with one end adapted to reciprocate between said guides, and its opposite end provided with a transverse shaft inclosed in said pillow-block; and means for reciprocating the die end of said swinging arm by attachment to suitable power medium, for the purpose described and substantially as shown and set forth.

4. In a swaging-machine a beam pivoted at one end with its opposite end adapted to reciprocate between guides; means for reciprocatin g the free end of said swinging arm by suitable connection with a power medium; a die-holder at the swinging end of said beam, said die-holder having a convex face curved to correspond with the swinging radius of the beam, and having a longitudinally-extending ridge and means for securing a swaging-die thereto; a stationary block or head rigidly fastened in front of said convex die- IOO IIO

holder, said block having means for attaehv eoncaved forging-die to aline with the die on ing a concaved die-holder having its face the convex die-holder, al1 for the purpose deourved on an are having for a radius the disscribed and substantially as set forth. tance to the pivotal point of the 4swinging 5 beam, said concaved die-holder having a 1on- -Witnessesz gitudinaHy-extending ridge with overhang- P. W. J. LANDER, ing edge and means for securing a similarly- W. S. WHITMAN.

GEO. H. HATHORN. 

